Flue expander and beader



(No Model.)

J. GOLES.

PLUB BXPANDERAND BEADBR. No. 514,588. Patented Feb. 13, 1'8-94.

:NTTED STATES PATENT EETCE.

JOSEPH oOLEs, OE ASPEN, OOLORADO, AssieNOR, RY MESNE AssieNMENTs, TO THE ooLEs ELUE EXPANDER AND BEADER ooMrANr, OE wEsT VIRGINIA.

FLUE EXPANDER ANDk BEADER.

SPECIFICATION forming part of Letters Patent No. 514,588, dated February 13, 1894. Application tiled October B. 189.2. Serial No. 448,029. (No model.)

To @ZZ whom, it may concern: having an exterior tlange or shoulder for Be it known that I, JOSEPH GOLES, ot Asforming a swell or corrugation in the fiue. pen, in the county of Pitkin and State of The invention further comprises a mandrel Colorado, have invented certain new and usefor interiorly supporting 'the end of a iiue ful Improvements in Flue Expanders and and forming a swell or corrngation therein, 55

Beadersmnd Ido hereby declare the following said mandrel consisting of a series of memto be afull, clear, and exact description ot the bers or segments having an exterior liange, invention, such as will enable others skilled in interior squared and circular openings, a the art to which it appertains to make and use guide located in said squared opening, and a th@ Sametapered mandrel rod forenpandingsaid mem- 6o This invention contemplates certain new bers or segments and working in a threaded and useful improvements in flue expanders opening in said guide, whereby the members and headers, and it has for its object the proor segments of the mandrel are held expandduotion of cheap, simple and highly efficient ed during the operation ot' the expanding and means whereby the iiue is braced or expandbeading rollers.

ed on both sides of the flue-sheet, the extreme The invention further comprises the details outer end of said line being turned or beaded of construction,combination and arrangement tight against the outer surface ot said flue of parts, substantially as hereinafter fully sheet. y set forth and particularly pointed out in the zo The inventign comprises an expanding and claims. 7o

beading machlne having two diderential roll- In the accompanying drawingsz-Figure 1 ers,one being designed to give the initial exis a vertical longitudinal sectional View of pansion and beadingto the fine, and the other my improved expander and header, shown in to complete the expansion and beading thereconnection with the end et a Hue. Fig. 2 is of, aided by said initial roller. an end view. Fig. 3 is a detail showing the 75 The invention furthercomprises an expandtwo arms with their dierential rollers placed ing and beading machine having two diaside byside. Fig. 4 is a view in perspective metrically opposed differential rollers for sucvot' the mandrel,w.ith parts broken away. Fig. cessively and conjunctively acting upon the 5 isa longitudinal sectional view showing a 3o end of a line, and means for adjusting said modified form of mandrel. Fig. 6 is a detail. 8o rollers and holding them in fixed relation to Fig. '7 isa view in perspective of a second theend of such fine. moditied form of mandrel.

Theinvention further comprises an eXpand- Referring to the drawings, A designates a ing and beading machine having dilerential castinghaving a central cylindrical bore a 3 5 rollers for successively and conjunctively actand projecting ends of, c2. The latter end is 85 ing upon the end ofa fiue for expanding and hexagonal or any polygonal shape, to permit beading the same, arms supportingsaid rollof the application thereto of a wrench or ers, and means for sliding and adjusting said other suitable tool, not shown. Adjoining v arms whereby said rollers are held up against the hexagonal end is a screw thread 0,3 on the 40 the 13119- periphery of the casting. From the casting 9o The invention further comprisesamandrel A at diametrioally opposite points project for interiorly engaging and bracing the end ears d4, which are arranged in pairs. In each of a flue, composed of a seriesotmembers or pair of ears are opposite coincident holes a. segments yieldingly held together and de- `B, B designate two arms having each a slot signed to be expanded by a tapered rod. b. Throughthese slots project pins b which 9 5 The invention further comprises a mandrel at their ends tit in holes d5 of earsal. These for interiorly supporting the. end of a flue arms have torwardrightangnlar ends b2 which and expanding the same at a point irnmeoverhang the end o.' of casting A and in such v diately back of the flue-sheet, said mandrel overhanging ends are holes h3. 'i 50 being composed of a series of members and C, C are the differential beading and exmo panding rollers both of which are provided at their inner and outer ends with short studs d, d', the former loosely fitting in recesses dx in the end d of the casting, and the latter, or outer studs d', in the holes h3 of arms B, B. The arms being similar both rollers maintain the same relative position with regard to the end of the flue. I term these rollers differential because ot the difference in their contour. The object of making the rollers different from each other is to cause one roller to act lirst on the end of a fine until thelatter is expanded and beaded to a certain degree, when the other roller will.begin to act and in conjunction with the initially acting roller will complete the beading of the flue. yHence the roller C is provided with an inner inclined wall d2 terminating in a circumferential groove d3, the outer Wall' d4 of which is slightly coneaved. The contour of the roller C is the converse of that of the roller C, that is, the outer wall d5 is inclined, and the inner wall d6 of the groove (i7 is slightly concaved. Thus the inner inclined wall d2 of roller C first acts upon the end of the flue and as the latter is expanded and is engaged by the central groove d3, the outerinclined wall d5 of roller U begins to act on the end of the fine, and, aided by the initial roller C, eifects the complete expansion and beading of the endfof the due. The extent to which the flue is expanded is regulated entirely by the inclination at which the rollers are held relatively to the casting and end of a iiue.

D is a ring or collar having a central threaded opening and designed to engage with and Work on the screw thread d3 of the casting. By moving this ring or collar inward it willbear against the ends of the arms B, B and cause the same to move forward and effect the tilting of the rollers.

From the sides of casting A project short studs or posts E upon each of which is supported a plate e, said plate having a hole near one end :for said stud, and curved at its outer end, as shown at c. These plates ,serve as guides for the operator in the application and operation of the mandrel and form a bearing against theflue sheet during the formation of the inner swellon the flue. Vhen the swell is formed, the guides are turned to one side, out of the way. These guide-plates can be held fast on the supporting studs by any suitable means, as, for instance, a nut e workin g on the upper end of the stud.

F is a mandrel designed to be located within theiiue near the end thereof, and in addition to bracing the end of the flue it is intended to circumfereutially expand the flue immediately back of the flue sheet and thus additionally bind the end of the due. The mandrel is composed of a series ot' members or segments f around which is passed a yielding band or ringf. On the exterior of the mandrel is a iiange or swell f2, while in its center is a tapering circular openingfs, and a rear square opening f4 terminating at its inner end at a shoulder f5 located between the square and circular openin gs.

G is the mandrel rod7 the main or body portion of which is made slightly tapering; and

at the termination of this taper the rod is pro-l vided with a screw-thread g. At thef other end of the rod is a second screw-thread g2 and adjoining the latter is asquared headg. A square nut g4 is located in the opening f4 of the mandrel and through it-s threaded opening is projected the'inner end of the mandrel rod said nut forming a guide therefor. Hence by turning the latter the nut will gradually be brought up against the shoulder f5 and hold the segments of the mandrel expanded. A binding nut g5 is located ou the threaded portion g2 of the mandrel rod. f

In practice, the mandrel is first inserted into the flue and by forcing the tapered rod inward the members or segments will be caused to expand and the flange on the mandrel will effect the swelling or corrugation of the Hue at a point immediately back of the liuc-sheet. The operator then by turning the mandrel rod will bring the nut g4 tight up against the shoulder f5 and thus hold the segments separated. Tlie mandrel being properly positioned, the operator then applies a Wrench, or other suitable tool, to the squared end of the casting and also to the binding nut g5, and eiiects the turning of said casting. The roller carrying arms are adjusted by turning the ring or collar D. The roller C upon coming in Contact with the end of the flue will, by turning of the casting, expand the said end and give ita slight outward curve or turn, while upon the roller C coming in contact with the said end of fine, the latter will be further beaded, and by the joint action of both rollers the end of the ilue will be forced tight against the iiue sheet. I-Iowever, just as the roller C isbroughtinto play the operator gives the casting a slight reverse movement and then turns ring or collar D so as to further move the rollers toward the end of the flue. Then the previous movement is repeated and the iinal beading accomplished.

The advantages of my invention are apparent to those skilled in the art to which it appertains. It will be specially observed. that IOO by means of the mechanism employed the ex-Y pansion and beading of the end ot' a flue can be readilyaccomplished and that the operation is simple and the beading successfully effected. It will also be observed that by forming a swell or corrugation in the ilue immediately back of the flue sheet a firmer and better connection is had; and this swell or corrugation is formed by the mandrel which mustnecessarily be employed to give the flue the proper support during the expanding and beading operation.

The advantage of employing differential rollers, whereby the end of the iiue will be successively acted upon by the two rollers, is that the initial beading being easier accomplished than the iinal beading, less power is required in first turning the casting when but a single roller is iu contact with the flue. When the flue has thus been initially beaded the casting is Vgiven a movement in the Vreverse direction, and the arms B `further adjusted inward by the turning'of the ring D, and thereby both rollers are `brought into engagement with the end of the flue. rendered necessary because in the initial beading the single roller gradually assumes an inclined position and by the readjustment both rollers are squarely presented to the end of the Hue. Some fines are thicker than others and thus it is easier to start the beading with one roller than with two, andthe initially acting roller forms the gage for the second, on subsequent acting roller. Hence less power is required `in starting the beading operation and the parts can be readily readjusted to complete the beading.

While the foregoing is the preferred form rof embodiment of my invention yet I do not restrict myself thereto, for without departing from the spirit of my invention the construction and arrangement shown in Fig. may be employed. In this form the mechanism for expanding and beading the projecting end of the fine is the same as that above described, the principal change being in the form of mandrel employed.

The mandrel H consists of a series of rollers h circularly arranged within a cylinder h', said rollers fitting in openings in said cylinder and loosely held in position by a ring H which latter also serves as a guide for the mandrel rod. Each roller has a central peripheral swell or ange h corresponding to and serving the same purpose as the flange or swell f2 of mandrel F. From the cylinder 7a extends a sleeve h2 which is projected through the central bore of casing A, and upon its screw threaded end hs are two binding nuts h4, 71,5. Thenut h4r is loose on saidthread, while the nut hfis rigidly held at the point to which adjusted: by a pin or key h6. The rigid -nut is intended to hold the loose nut at the proper gage during the operation of expanding the mandrel and thus prevent the expanding and beading mechanism from moving out of its proper adjustment. The operation of this form of my invention is substantially the same as that of the preferred form. The tapered mandrel rod is forced inward between the rollers of the mandrel, causing the latter to form a swell or corrugation on the iiue immediately back of the flue-sheet. To the hexagonal end of the casting and the loose binding nut a wrench is applied and the casting turned, causing the rollers to successively and conjunctively act upon the end of the fine, edecting the expansion and beading thereof. A nut 72,7 is preferably screwed on the inner end of the mandrel-rod to prevent the accidental Withdrawal thereof from between the rollers.

In Fig. '7 I have shown a second modified form of mandrel, the same being used when This is it is desired to hold or bind the parts without forming an inner swell on the iiue. In this form the mandrel is composed of a series of members or segments i, each having aninner threaded groove or recess fi', said segments being yieldingly held together by a band i2. On the outer surface of each segment is a fine screw-thread i3 designed to bite the inner surface of a flue. The mandrel rod employed with this form of mandrel is substantially the Same as that shown in Fig. l, the threaded portion of said rod engaging the grooves of the segments and forcing them apart.

l claim as my invention- 1. A flue expander and header having differential rollers for successively and conjunctively acting upon the end of a iiue, each of said rollers being provided with two tapering walls and a central groove, each of said walls having a different taper, the outer tapering wall of one roller corresponding to the inner tapering wall of another roller, substantially as set forth.

2. A flue expander and beader having two differential rollers one of which gives the initial expansion and beading to the end of a fine and is provided with two tapering walls and a central groove, each of said walls having a different taper, the other of said rollers, in conjunction with the former, completing the expansion and beading, and likewise provided with two walls of dierent taper and a central groove, the outer wall of said latter roller corresponding to the inner wall of said former roller, substantially as set forth.

3. A iiue expander and header having differential rollers for successively and conjunctively expanding and beading the end of IOC/ a flue, and adjustable arms controlling said rollers, as set forth.

4E. A iiue expander and beader having differential rollers for successively and conjunctively expanding and beading the end of a iiue, sliding arms controlling said rollers and means for adjusting said arms, substantially as set forth.

5. The herein-described improved flue expander and header, comprising the casting, the arms loosely held to said casting, the rollers held by/said arms, and the adjustable ring or collar for moving said arms independently of said casting, .substantially as set forth.

6. The herein-described improved iiue eX- pander and header, comprising the casting having ears projecting therefrom and an external screw thread, the arms loosely mounted between said ears, the rollers held by said arms, andthe ring or collar having a threaded opening and adjustable on said screw-thread of the casting, as set forth.

7. The herein-described improved iiue expander and header, comprising the casting having apertured ears, and externally screwthreaded, the arms having slots therein, the cross-pins projected through said slots and supported by said ears, the rollers having end studs, the inner ones of which t in recesses IIO in said casting while the outer studs project into holes in said arms, and the ring or collar working in said screw-thread of the casting and designed to move said arms, substantially as set forth.

8. A mandrel having a central opening and a series of circularly arranged members provided with a peripheral flange or swell, au inclosed holder located within said opening in rear of the flange or swell and conforming to the shape of said opening, and designed to bear against projecting portions of said members, and the tapered mandrel rod for directly engaging and forcing said members outward and extended through an opening in said holder, substantially as set forth.

9. The herein-described mandrel composed of a series of yielding members or segments and having a central opening, the tapered mandrel rod for forcing said members or segments apart, and the guide located in said opening engaged by said mandrel rod for holding said members or segments expanded, as set forth.

10. The herein described mandrel composed of a series of yielding members or segments having a central opening and a peripheral flange or swell, the tapered mandrel rod, and the adjustable guide located in said opening and engaged by said mandrel rod for holding said members or segments expanded, as set forth.

1l. The hereindescribed mandrel composed of a series of members or segments having a central squared and circular opening, a nut located in said squared opening, and the tapered mandrel rod having a threaded portion for engaging said nut and adjusting it so as to hold said members o1' segments eX- panded, as set forth.

l2. The herein-described mandrel, composed of a series of members or segments having a peripheral flange or swell and a central squared and circular opening, a yielding ring or band encircling said members or segments, the nut located in said squared opening and having a central threaded opening, and the tapered mandrel rod for forcing said members or segments apart and having a screwthread engaging said nut, substantially as set forth.

13. The combination with a mandrel, of an expanding and beading machine having iudependently pivoted guides projecting therefrom and designed to bear against said lluesheet while said mandrel is being operated, as and for the purpose stated.

14. The combination with a mandrel for forming an inner corrugation or swell on a flue in rear of the flue-sheet, of the casting carrying expanding and beading rollers and having studs projecting therefrom, andthe guide plates pivoted on said studs and designed to bear against said line-sheet while said mandrel is being operated, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

JOSEPH GOLES.

Vitnesses:

EDWARD J. BooK, CHARLES M. ROBERTS. 

